American Stock Exchange Lists Notes Based on the S&P 500 Index NEW YORK, April 27 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) today began trading Citigroup Global Markets 1.5% Principal- Protected Equity Linked Notes based upon the S&P 500 Index . Trading under the ticker symbol PDY, 8.95 million shares of the new security were issued at $10 each with a maturity date of October 29, 2009. The security will bear interest at a rate of 1.5% per annum, paid in cash semi-annually on the 29th of April and October commencing on October 29, 2004. The notes are not subject to redemption at the option of the holder prior to maturity. At maturity, investors will receive payment equal to the sum of $10 and an interest distribution amount based on the monthly returns of the S&P 500 Index. The issuer is Citigroup Global Markets and the Amex specialist unit for the new listing is Wolverine Trading LLP. If you would like to receive a copy of the prospectus for PDY, please contact the Capital Markets Group at the American Stock Exchange at (212) 306-1659. The American Stock Exchange(R) (Amex(R)) is the only primary exchange that offers trading across a full range of equities, options and exchange traded funds (ETFs), including structured products and HOLDRS(SM). In addition to its role as a national equities market, the Amex is the pioneer of the ETF, responsible for bringing the first domestic product to market in 1993. Leading the industry in ETF listings, the Amex lists 138 ETFs. The Amex is also one of the largest options exchanges in the U.S., trading options on broad-based and sector indexes as well as domestic and foreign stocks. For more information, please visit http://www.amex.com/. DATASOURCE: The American Stock Exchange CONTACT: Lynn Duffy, American Stock Exchange, +1-212-306-1654, Web site: http://www.amex.com/

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